778
FNCA52 TJSJ 250730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST FRI SEP 25 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-252000-
SOUTHEAST COASTAL PLAINS-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 30 0 10
TEMP (24H TREND) 90 (+3) 74 (-2) 91
RH % (24H TREND) 50 (-13) 89 (-1) 51
WIND 20FT/EARLY(MPH) E 11 E 8 E 12
WIND 20FT/LATE(MPH) SE 11 NE 8 SE 12
MIXING HGT(FT-AGL/MSL)4440 4800
TRANSPORT WND (MPH) SE 10 SE 13
VENT RATE (KT-FT) 39960 52800
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-252000-
SOUTHERN HILLS-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 20
TEMP (24H TREND) 89 (+5) 71 (-3) 89
RH % (24H TREND) 60 (-10) 97 (+3) 59
WIND 20FT/EARLY(MPH) E 10 E 8 E 10
WIND 20FT/LATE(MPH) SE 10 E 8 SE 10
MIXING HGT(FT-AGL/MSL)4940 5290
TRANSPORT WND (MPH) SE 9 SE 10
VENT RATE (KT-FT) 39520 47610
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-252000-
NORTH COASTAL PLAINS-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 40 30
TEMP (24H TREND) 92 (+4) 74 (-2) 92
RH % (24H TREND) 58 (-10) 96 (+1) 59
WIND 20FT/EARLY(MPH) SE 11 SE 9 SE 11
WIND 20FT/LATE(MPH) E 12 SE 8 E 12
MIXING HGT(FT-AGL/MSL)4970 5580
TRANSPORT WND (MPH) SE 8 SE 8
VENT RATE (KT-FT) 34790 39060
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-252000-
NORTHERN HILLS-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 80 60
TEMP (24H TREND) 90 (+3) 71 (-3) 90
RH % (24H TREND) 59 (-9) 97 (0) 59
WIND 20FT/EARLY(MPH) SE 8 SE 6 SE 8
WIND 20FT/LATE(MPH) E 9 LGT/VAR NE 10
MIXING HGT(FT-AGL/MSL)5010 5670
TRANSPORT WND (MPH) SE 7 SE 7
VENT RATE (KT-FT) 30060 34020
DISPERSION 5 5
DSI 5 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-252000-
WEST COAST-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 20 40
TEMP (24H TREND) 93 (+4) 74 (-1) 93
RH % (24H TREND) 59 (-8) 96 (0) 59
WIND 20FT/EARLY(MPH) SE 12 E 9 E 11
WIND 20FT/LATE(MPH) SE 12 E 6 E 12
MIXING HGT(FT-AGL/MSL)4330 4860
TRANSPORT WND (MPH) SE 12 SE 10
VENT RATE (KT-FT) 43300 43740
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-252000-
EASTERN INTERIOR-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 30
TEMP (24H TREND) 90 (+4) 72 (-3) 90
RH % (24H TREND) 58 (-9) 96 (0) 58
WIND 20FT/EARLY(MPH) SE 10 SE 9 SE 10
WIND 20FT/LATE(MPH) SE 11 SE 9 SE 11
MIXING HGT(FT-AGL/MSL)5440 6030
TRANSPORT WND (MPH) SE 9 SE 10
VENT RATE (KT-FT) 43520 54270
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-252000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 30
TEMP (24H TREND) 86 (+4) 70 (-2) 86
RH % (24H TREND) 62 (-10) 99 (0) 62
WIND 20FT/EARLY(MPH) SE 10 SE 8 SE 9
WIND 20FT/LATE(MPH) SE 10 SE 8 SE 10
MIXING HGT(FT-AGL/MSL)4380 4640
TRANSPORT WND (MPH) SE 12 SE 13
VENT RATE (KT-FT) 43800 51040
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-252000-
CENTRAL MOUNTAIN RANGE-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 30 50 50
TEMP (24H TREND) 88 (+6) 68 (-3) 89
RH % (24H TREND) 62 (-12) 97 (+1) 60
WIND 20FT/EARLY(MPH) SE 8 SE 8 SE 8
WIND 20FT/LATE(MPH) SE 8 LGT/VAR SE 8
MIXING HGT(FT-AGL/MSL)5030 5890
TRANSPORT WND (MPH) SE 7 SE 8
VENT RATE (KT-FT) 30180 41230
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-252000-
CAYEY MOUNTAIN RANGE-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 10
TEMP (24H TREND) 86 (+4) 71 (-1) 86
RH % (24H TREND) 64 (-8) 100 (+1) 63
WIND 20FT/EARLY(MPH) SE 8 SE 5 E 9
WIND 20FT/LATE(MPH) SE 9 E 6 SE 9
MIXING HGT(FT-AGL/MSL)4780 5030
TRANSPORT WND (MPH) SE 9 SE 10
VENT RATE (KT-FT) 38240 45270
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-252000-
VIEQUES-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 30
TEMP (24H TREND) 90 (+3) 77 (0) 92
RH % (24H TREND) 57 (-8) 92 (+1) 56
WIND 20FT/EARLY(MPH) SE 10 SE 11 E 12
WIND 20FT/LATE(MPH) SE 9 E 11 SE 10
MIXING HGT(FT-AGL/MSL)3310 3570
TRANSPORT WND (MPH) E 12 SE 12
VENT RATE (KT-FT) 33100 35700
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-252000-
CULEBRA-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 30
TEMP (24H TREND) 91 (+4) 78 (-1) 92
RH % (24H TREND) 59 (-8) 91 (+2) 58
WIND 20FT/EARLY(MPH) SE 10 SE 11 E 12
WIND 20FT/LATE(MPH) SE 10 E 11 SE 10
MIXING HGT(FT-AGL/MSL)3370 3410
TRANSPORT WND (MPH) E 12 SE 12
VENT RATE (KT-FT) 33700 34100
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-252000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 10
TEMP (24H TREND) 93 (+5) 75 (-2) 93
RH % (24H TREND) 48 (-13) 92 (+1) 51
WIND 20FT/EARLY(MPH) E 14 E 12 E 16
WIND 20FT/LATE(MPH) SE 14 E 10 SE 16
MIXING HGT(FT-AGL/MSL)4590 4760
TRANSPORT WND (MPH) SE 14 SE 15
VENT RATE (KT-FT) 55080 61880
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-252000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 20
TEMP (24H TREND) 90 (+4) 78 (-1) 89
RH % (24H TREND) 60 (-8) 89 (+3) 61
WIND 20FT/EARLY(MPH) SE 11 SE 11 E 12
WIND 20FT/LATE(MPH) SE 10 E 11 E 11
MIXING HGT(FT-AGL/MSL)3410 3420
TRANSPORT WND (MPH) E 10 SE 12
VENT RATE (KT-FT) 30690 34200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-252000-
ST CROIX-
330 AM AST FRI SEP 25 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 10
TEMP (24H TREND) 91 (+5) 77 (-1) 91
RH % (24H TREND) 60 (-9) 95 (+4) 61
WIND 20FT/EARLY(MPH) E 11 E 11 E 12
WIND 20FT/LATE(MPH) SE 11 E 12 E 11
MIXING HGT(FT-AGL/MSL)4620 4680
TRANSPORT WND (MPH) SE 13 E 15
VENT RATE (KT-FT) 50820 60840
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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